Yes there is good money in renting if you are disciplined and do it the right way. You best benefit by having a long term plan and a great professional property management company. Do those two things and buy the right homes and the proper way and you will make money sooner than you think.
It is best to target the homes which lease for the median price in an area. You can ho higher income but be cautious how many of those homes you own. A house setting empty for a couple of months can cost huge money.
You should purchase a home with enough money down to keep you home payment well below the rental income. There are expenses. Within just a couple of years (normally) equity will start to build and rental income will also increase. Yes, there is good money in renting.